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  • David W. Privett

Navy Nuke... Turns Locksmith

David Privett, the owner of Sparrow Lock & Key, couldn’t have imagined becoming a locksmith when he began his career as a nuclear engineer and electronics technician for the

US Navy back in the 1980s. However, though not quite as challenging, David has found that locksmithing is the perfect way to use his technical skills to help people with their home and business security and access control needs.

“I find the engineering involved in locks to be fascinating – each one is a little puzzle that needs solving. Believe it or not, there is a similarity between a high-quality lock and a nuclear reactor in that both are carefully engineered to strict tolerances and the critical working parts are hidden from view.” -- David Privett

Once he discovered locksmithing, David was hooked. His fascination for locks, lockpicking, and key-making snowballed. This fascination led to a series of locksmith courses, certification programs, and a seemingly endless accumulation of specialized tools. Blessed with substantial hands-on experience working with professional locksmiths on the South Shore, David was determined to go all the way, and Sparrow Lock & Key was born.


“If I had only known, I would have been a locksmith.” – Albert Einstein (1879-1955)

Today, as a certified locksmith, David still holds firm to the standards of integrity and trust instilled in every Navy Nuke. As a member of the Mass Locksmith Association and the Society of Professional Locksmiths, he has pledged to apply these same standards to the locksmithing profession. Serving every customer with integrity, respect, and excellence is the goal of Sparrow Lock & Key.


As a skilled engineer, David enjoys the challenges of lockouts and master keying and gets great satisfaction from unpickable locks clicking open. Even more exciting is the smile from a customer well-served.


“In locksmithing, trust is more important than technical skills. More than just locks or latches, the security of your home or business depends on the integrity and trustworthiness of your locksmith.” – David Privett

Your key and lock project may never need the skill and training of a Naval Nuclear Engineer, but it's nice to know, here on Cape Cod, there is one... waiting for your call.

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